package dp;

/**
 * @ Author     ：侯耀祖
 * @ Description：
 */
public class change {
    public int change(int amount, int[] coins) {
        int len = coins.length;
        int[] dp = new int[amount + 1];
        dp[0] = 1;
        for (int i = 0; i < len; i++) {
            for (int j = coins[i]; j <= amount; j++){
                dp[j] += dp[j - coins[i]];
            }
        }
        return dp[amount];
    }
}
